Broadly speaking a household is defined as being ‘fuel poor’ if they cannot reasonably afford to heat their home.
Currently in England, fuel poverty is measured using the Low Income Low Energy Efficiency (LILEE) indicator. This defines a household as being fuel poor if:
And
Another common definition used by organisations such as the National Action Energy Charity states that a household is experiencing fuel poverty if they are spending 10% or more of their total household income on energy bills.
There are three main contributors to fuel poverty: low income, high fuel costs and inefficient homes (see diagram below).

Living in a cold home has impacts on physical and mental health.
EWDs are the difference between the average daily deaths in the winter months (December to March) compared to the rest of the year.
The following figures are for England & Wales EWDs (Including COVID-19):
| Winter Period | England & Wales EWD’s | Portsmouth EWD’s |
| 2021 to 2022 | 13,400 | To be confirmed |
| 2020 to 2021 | 60,760 | 250 |
| 2019 to 2020 | 10,400 | 40 |
The top three causes of EWD’s are: respiratory conditions, circulatory conditions and dementia and Alzheimer’s disease (see diagram below). Many of the causes can be linked to living in cold homes
